Telegraphic relay.



I. KITSEE; TBLBGRAPHIG RELAY. APPLICATION FILED JAN. 27, 1908.

956,808. 7 Patented May 3,19 0.

WITNESSES:

ANUREV/ u. GRAHAM co. PHUTO-UTHOGRf-PHERS. wAsmNsm N. D. c,

UNITED STATES PATENT OFFICE.

ISIDOR KITSI JE, OF PHILADELPHIA, PENNSYLVANIA.

TELEGRAPHIC RELAY.

To all whom it may concern:

Be it known that I, IsIDoR Krrsin, a. citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inTelegraphic Relays, of which the following is a specification.

My invention relates to an improvement in telegraphic relay. Its objectis to produce means to lessen the sparking or sticking between thestationary and movable contacts of a relaying device.

In experimenting with sensitive relays, I have found that the stickingor sparking is greatly prevented when the source of current itself,without any electro-magnetic devices or other resistance, is shortcircuited; but in short circuiting the source of current, such forinstance as batteries, not every type is suitable therefor and the typenow usually employed-secondary batterieshas to be entirely discarded onaccount of their low re sistance and I have found that the so-calledgravity or blue-stone .cells are well adapted for the purpose inquestion.

In the drawing, which is a partial diagrammatic and partial perspectiveview of a relay embodying my invention, 1 represents the relay proper;this relay is here shown as a coil suspended and movable, placed in theregion of a magnetic field; 2 the suspension wire; 3 the suspended movable conductor; 4 the stationary conductor. In this drawing, thesuspended conductor is shown as to be normally in contact with thestationary conductor; 5 are the means to actuate the suspended conductorwith the aid of the movable part of the relay proper; 6 are the means tosuspend the metallic wire thereon.

12 is the source of current, here shown as consisting of two cells. Thissource of current is provided with the wires 7 and 8 which are shortcircuited and provided with the wires 9 and 11 connected to theelectromagnetic device 10. This electro-magnetic device may represent asounder or device adapted to operate other electro-magnets.

The operation of this arrangement is as Specification of Letters Patent.

Application filed January 27, 1908.

Patented May 3, 1910.

Serial No. 412,919.

follows :Normally, the conductors 3 and 4 are in contact-with each otherand the battery 12 is therefore short circuited. No current will flowthrough the circuit containing the electro-magnet, but when through theincoming impulse the movable part of the relay arrangement is moved outof contact with the stationary part, the short circuit is broken and theelectro-magnetic device is operated.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is 1. In cable telegraphy, a receiving organismcomprising a movable coil in the region of a stationary magnetic field,two relaying contacts therefor, one relaying contact movable andsuspended on a conducting thread, the second relaying contactstationary, a localized source of current, one pole connected to thestationary contact and the second pole connected to the conductingthread; a second circuit for said source of current and a translatingdevice in said second circuit.

2. In combination with a sensitive relaying device, a battery normallyshort circuited through the relaying means and provided with a secondcircuit containing neces sary translating device, the short circuitadapted to be broken through the movement of the movable part of therelaying arrangement due to the incoming impulse.

3. In cable telegraphy, a relay connected to the cable, a movableconductor suspended with the aid of a conducting thread and meanstherefor to operate the same with the aid of the movable part of therelay proper, a stationary contact normally connecting with the movableconductor, a source of current normally short circuited through thestationary and movable conductor; a second circuit for said source ofcurrent and necessary translating device in said second circuit.

In testimony whereof I afiix my signature in presence of two witnesses.

ISIDOR KITSEE.

WVitnesses:

EDITH R. STILLEY, MARY 0. SMITH.

